Process for producing polycrystalline cubic aluminum oxynitride
US4241000A · kind A · utility
286Cited by
3References
3Claims
0Family size
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Key dates
| Filing date | Aug 24, 1978 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Aug 24, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/581
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A structural ceramic material comprising single phase polycrystalline cubic aluminum oxynitride preferably with at least 97% of theoretical density which displays transparency and isotropic optical, thermal and electrical properties, an infrared cutoff at about 5.2 microns wavelength, and which shows no chemical or physical property change after heating in air (atmosphere) at 1100.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.